Microsoft 365 Message Center

Microsoft Teams will validate meeting join URLs starting September 30, 2025 (November 30 for GCC/DoD) to prevent altered or rewritten links from being used. Security products must avoid rewriting these URLs to prevent users from being blocked. No admin action is needed, but organizations should u...

Outlook for iOS and Android now features a "Browse Files" button in conversation threads (with "Newest on Top" view) to quickly access all classic attachments. This mobile-only feature rolled out worldwide in July 2025, requires no admin setup, and excludes OneDrive or SharePoint links.

Windows 365 will undergo planned maintenance from August 4 to 9, 2025, during regional non-peak hours with no downtime. Users may experience brief reconnections lasting under a minute, occurring 1-2 times within a 4-hour window. No action is required, but notifying users is advised.

We are announcing the ability to re-enable locked customer managed key environments

The Teams Discover Feed backend is migrating from People Prediction Service to Substrate Search Service Recommendations starting June 18, 2025, with PPS deprecated by August 2025. No user impact is expected. Ensure client versions meet minimum requirements on Windows, iOS, and Android before August.

Microsoft 365 Copilot in PowerPoint will support enterprise image libraries via SharePoint OAL or Templafy starting August 2025. Admins can connect branded image libraries to enable users to generate slides with organizational images, ensuring brand consistency. Setup requires metadata-rich image...

We've released updates to the following update channel for Microsoft

Microsoft Viva Amplify now supports custom themes and fonts from SharePoint’s Brand Center, enabling branded, consistent communications across channels. Default SharePoint themes apply automatically, with options to override. Custom fonts require deployment via endpoint management. Rollout begins...

Starting August 2025, Microsoft Edge for Business will introduce the Microsoft365CopilotChatIconEnabled policy to control the visibility of the Copilot Chat button in the toolbar. Available from Edge version 139, it replaces the HubsSidebarEnabled policy by version 141. No admin action is needed ...

Upgrade Microsoft Tunnel to the March 19, 2025 release or later by August 15, 2025, to use new endpoints and avoid service disruptions. Downgrades to earlier versions will be unsupported and may cause connection issues.

Now generally available for Windows 11, version 24H2 are two major advancements

The July 2025 non-security preview update is now available for Windows 11,